I'll admit, I have no idea how to do anything advanced with it, but I like it because I can double click almost anything that is an image, from old Deluxe Paint

I'll admit, I have no idea how to do anything advanced with it, but I like it because I can double click almost anything that is an image, from old Deluxe Paint files, PICs, RAWs, TIFFs, whatever, and it'll try to open it and put something on the screen, usually successfully.